Dough-mixing machine.



Patenfed ca -28, |902.' n. menne., l r Donau MIXING MACHINE.

(Appumiu med Aug. 4. 1905's.)

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No. 7|2,|44. Patented oct. 28, |902. B. L. MACHALE.

vnous" MIXING MACHINE? (Application med Aug. 4, 1902.)

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UNITED STATES- PATENT OFFICE.

RICHARD L. MAOHALE, OF NEW YORK, N. Y.

DoUGH-MIXING MACHINE. l

SPECIFICATION forming part 0f Letters Patent No. 712,144, dated October 28, 1902.

Application filed August 4, 1902.

To all whom, t may concern:

Beitknown that I, RICHARD L. MACHALE, a citizen of the United States, residing at the city of New York, in the borough of Manhattan, in the county and State of New York, have invented certain-new and useful Improvements in Dough-Mixing Machines, of which the following is a specification.

The object ofmy invention is to provide a new and improved dough-mixing machine which is strong and durable, simple in construction, Vthoroughly works and mixes the dough to a perfect consistency in a very short time, and from which mixing-machine the dolugh can be discharged very easilyvand rap- 1 y. y

In the accompanying drawings, in which like letters of reference indicate like parts in all the figures, Figure l is a side elevation of my improved dough-mixing machine. Fig. 2 is a plan view of part of the same, parts of the trough being shown in section and parts broken away. Fig. 3 is an end elevation of my improved dough-mixing machine. Fig. 4t is a detail vertical longitudinal sectional view of one of the beater-arms on the main shaft. Fig. 5 is a detail view of the sleeve between the hubs of the beater-arms on the main shaft.

Two standards A form the main frames of the machine, and in said two main frames or standards and an auxiliary standard A a driving-shaft B is journaled in suitable bearings and carries the fixed and loose pulleys B and B2, of any conventional construction. This shaft B also carries a cog-wheel C, which engages a cog-wheel D on a shaft D, mounted in both standards A and the auxiliary standard A', and this shaft D carries on the outer side of each standard A a cog-wheel D2, which each engages alarge cog-wheel E', fixed on opposite ends of a shaft :E, mounted in the standards A and passing longitudinally through a substantially U-shaped trough F, located between the standards Y The trough F is provided at each end with a toothed segment F at the bottom, and these two segments engage pinions F2 ona shaft F2, mounted horizontally in brackets A2 of the standards A, said shaft F3 being parallel with the shaft E and at one side of the srie No. 118,221. (110 man.)

trough F. A hand-wheel F401- other contrivance for rotating the shaft F3 is provided on the same, so that by rotating said shaft F3`the trough F can be turned on the shaft E as a pivot-that is to say, the bottom can be swung upward toward one side and the top downward toward the other side-and the trough thus tilted for the purpose of ejecting or discharging the dough. One of the standards A is provided with a bracket A3 on the end opposite the one having a bracket A2, and in an enlargement A4 at the upper end of this bracket a short shaft G is mounted horizontally. One end of this shaft Gcarries a cogwheel G,engaging one of the large cog-wheels E on the shaft E, and at its opposite end this shaft G carries a larger cog-wheel G2, which engages a cog-wheel H2, mounted on a sleeve I, in which the stuffing-box I for the shaft E is located. .v

The wheel H2 turns loosely on the sleeve I and is engaged with two cog-wheels J, fixed on two parallel horizontal shafts J', mounted in the bottom part of the trough and projecting from one end of the same. Within the trough each shaft Jcarries a screw or worm K, located close` to the bottom of the trough. When the Wheels Elv are rotated from the driving-shaft, one of these wheels rotates the wheel G', whereby the wheel G2 is rotated, and this rotates the wheel H2, from which the two wheels J and their shafts J and the worms K thereon are rotated.

The Worms rotating in the bottom of the trough constantly keep the mixture of flour and water which is to be converted into dough moving forward and backward in the bottom of the trough and agitate and work it thoroughlyand cause a most intimate mixture of the water and flour, as the two Worms constantly cut and slice the mixture of iiour and water.

On the shaft E three or more pairs of oppositely-extending arms L are keyed or otherwise secured within the trough F. These larms are provided with openings v L and at 'their'free ends have rectangular cups M, the four sides of which are inclined inward and toward a central bottom opening M' in the cup. The arms L may be straight or may be slightly curved, as shown in Fig. 4. Be-

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tween each two arms L an arm N projects horizontally from the inner surface of each sidewall of the trough, which arms N are also provided with rectangular cups O like the cups M` which cups O have central openings O'. Such arms N and cups O are also provided on the inner surface of the end walls ofthe trough F. As the arms L rotate in the trough they seize the dough in the lower part of the trough and pull it upward and draw it up between the cups O and the fixed arms N, and the arms L also cut through the dough. As the arms are provided with the openings L', and the cups M with the openings M', and the cups O with the openings O', large quantities of air are drawn into the dough-that is to say, as the arms Lrotate and the dough encounters the fixed arms N the dough is drawn into strips and shreds, which are then pressed together as the dough is delivered upon the arms N on the other side, and thus the air is confined in the interstices formed in the dough. It is very essential to have as much air incorporated in the dough as possible, and by providing the arms and cups many spaces for air are produced in the dough. The inclined or beveled cups M and O- having the openings M5 and O also produce additional movements in the dough and agitate the same to a still greater extent.

te. Flanged half -rings P, held together by screws P', are applied on the shaft E between the hubs L2 of the arms L, and on these rings P half-cylinders P2 are secured between the iianges of the rings, which rings and halfcylinders prevent any accidental displacement or shifting of the hubs L2 on the shaft E in the direction of the length of the shaft.

When the dough has been mixed, worked, and agitated to the desired degree, the handwheel F4 is turned for the purpose of tilting the trough, the driving-shaft now being at rest. While the trough is being tilted the wheels J roll on the wheel H2, and thus are slowly rotated, and this slow rotation of the wheels J and worms K causes the loosening of the dough in the trough, and these movements of the screws K cause the dough to be discharged readily through the opening of the tilted trough.

After all the dough has been removed the parts are brought back into the positions shown in Figs. l and 3 and a fresh batch of dough can be mixed, and so on.

Pins as and latches 0c are provided for locking the trough in place while mixing the dough.

Having described my invention, what I claim as new, and desire to secure by Letters Patent, is-

1. In a dough-mixing machine, the combination with a trough, of a shaft passing longitudinally through the same, arms on said trough, means for rotating` said loose wheel from the gearing for rotating the shaft and cog-wheels on the worm-shafts engaging said loose cog-wheel, substantially as set forth.

2. In a dough-mixing machine, the combination with a trough, of a shaft passing longitudinally through the same means for tilting said trough on said shaft, gearing for rotating the shaft, a cog-wheel mounted loosely on the shaft outside of the trough, gearing for rotating said loose cog-wheel from the gearing for rotating the shaft, two worms in the bottom of the trough, cog-wheels on the ends of the shafts of said worms, which cog-wheels engage the loose cog-wheel on the shaft, substantially as set forth.

3. In a dough-mixing machine, the combi-- nation with a trough, of a shaft on which said trough is mounted to tilt toothed segments on the bottom of the trough, cog-wheels engaging said two segments, means for turning said cog-wheels, arms on the shaft within the trough, gearing for rotating the shaft, a cogwheel mounted loosely on the shaft outside of the trough, two worms in the bottom of the trough, cog-wheels on the shafts of said worms outside of the trough and engaging the loose cog-wheel, substantially as set forth.

4. In a dough-mixing machine, the combination with two standards, of a main shaft journaled in the same, a cog-wheel fixed on each end of the shaft, a driving cog-wheel engaging each of said cog-wheels on the shaft, a bracket on one standard, a shaft in said bracket, cog-Wheels on said shaft, one of which cog-wheels engages one of the cogwheels on the shaft, a cog-wheel mounted loosely on the main shaft and engaging the other one of said two cog-wheels of the shaft mounted on the bracket, a trough suspended from the main shaft, between the two end cog-wheels, arms 011 the shaft within the trough, two worms in the bottom of the trough, cog wheels on the shafts of said worms, which cog-wheels engage the loose cog-wheel, on the main shaft substantially as set forth.

5. In a dough-mixing machine the combination with a trough, of a shaft, arms projecting from said shaft within the trough and having cups on their outer ends, arms projecting inward from the inner surfaces of the sides of the trough and having cups on their free ends, and means for rotating the shaft in the trough, substantially as set forth.

6. In a dough-mixing machine, the combination with a trough, of a shaft passing longitudinally through it, arms projecting from said shaft, which arms have slots extending from top to bottom, and have cups on their free ends, which cups have their inner surfaces inclined inward and downward, and openings in the bottoms of the cups and rigid arms projecting from the inner surfaces of the side walls of the trough between the arms on the shaft, substantially as set forth.

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7. In a dough-mixing machine, the colnbi- I In testimony whereof I have signed my 1o nation With a trough, of a shaft passing lon- I name to this specieation, in the presence of gitudinally through the same, arms 0n said tWo subscribing Witnesses, this 9th day of shaft, hubs from which said arms project, July, 1902.

5 anged half-rings applied on the shaft adjacent to the hubs, and two half-cylinders sur- RICHARD L' MACHALE' rounding the shaft, the half-cylinders being Witnesses:

` placed between the inner faces of the flanges J. J. GILBERT,

of said rings, substantially as set forth. OSCAR F. GUNZ. 

